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2.05-57 Rev. 11/96- PR07; 10/20 TR148 <br />During topsoil preparation, seeding, and planting activities are conducted parallel to the contour <br />unless such activities prove hazardous to equipment and/or operators due to conditions of steep <br />slopes, etc. Various conditioners and neutralizers may be used to modify the seedbed conditions, or <br />enhance vegetative cover, if required. <br /> <br />The ameliorative soil treatments proposed include the following: <br /> <br /> Deep harrowing with a long shanked chisel plow along the topographic contour to loosen the <br />soil. <br /> <br /> Stubble mulching, mulching with straw pressed into the surface with a disc, or by using <br />mulches of other kinds, e.g., excelsior, rock chips, wood chips, etc., appropriately applied. <br /> <br /> Fertilizing with an appropriate formula as indicated by soil analyses. <br /> <br /> Liming of seedbed material, if necessary, with application of agricultural ground limestone at <br />the rates indicated by soil analysis. <br /> <br />Prior to liming, fertilizing, or planting, the soil surface is scarified or otherwise roughened, <br />particularly if the soil surface is glazed or crusted. After liming and/or fertilizing, the soil treatments <br />is worked into the soil. The prepared seedbed material is then seeded and planted. <br /> <br /> Seeding Mixtures <br /> <br />A number of considerations are made in selecting plant species. These include the species listed in <br />the baseline biological survey, species geographical range, soils, climate, slope and aspect, root <br />competition, cover, and seasonal variation. The seed mixes have also been reviewed in light of <br />experience gained on West Elk Mine revegetation test plots, and past reclamation efforts <br />quantitative data collected in 1980 describing the present vegetative cover, and in terms of the <br />wildlife requirements noted in Restoring Big Game Range in Utah by A. P. Plummer, D. R. <br />Christensen, and S.M. Monsen (1968) and Management Guidelines for Selected Deer Habitats in <br />Nevada by P. A. Tueller and L. A. Monroe (no date). Grasses are generally the most effective plant <br />materials for controlling erosion in the early stages of reclamation. Shrubs and forbs are being <br />planted to provide further soil stabilization. The shrubs will create a protective canopy and will <br />further build up the surface organic litter which will control erosion and surface runoff. The <br />combination of grasses and shrubs should provide diverse biological communities which will <br />support both wildlife and domestic stock. <br /> <br />The revegetation objective for disturbed areas is to achieve a self-sustaining vegetative cover of <br />hardy grasses and shrubs that will become a productive and ecologically stable biotic community. <br />The revegetated areas will be reclaimed to support wildlife and livestock grazing. Areas disturbed <br />during mining will be reseeded during final reclamation with native species or a mixture of native <br />and introduced species. <br /> <br />Mixtures containing introduced species may be more efficient in establishing ground cover for <br />preventing erosion and protecting topsoil since some may grow faster and produce cover more